Spring reverb tank driver

Spring reverb i had been considering before to make a diy spring reverb, but to construct springs and transducers seemed too much hassle. I made a spring reverb driver, but i noticed a drop in. Replaced mod tank that was selfoscillating due to the second spring vibrating continuously. The reverb tank historical use in musical instruments spring reverb construction and operation 3 the significance of multiple transmission springs input and output impedance delay time decay time 4. You need a driver to push enough energy into the input coil of the tank. Avoid mounting the outer channel of the reverb tank directly to the mounting surface by using grommets, rubber standoffs, reverb tank bag and liner or other products designed for mechanical isolation. Built the stage center as a stand alone unit with the spring reverb tank inside it was a pedal that is about 35 cm long by 15 cm high and wide. And finally some short demos with the specified 3 spring 8eb2c1b tank, just to give an idea of what it sounds like. The drive circuit for any spring reverb tank is critical by far the most critical part of the final system. The 10 best spring reverb pedals analog and digital wikiaudio. Spring reverbs provide a relatively simple and inexpensive method for creating reverberation effects. Everything i know about spring reverb an mk2 version of music thing modulars spring reverb module went on sale this weekend. The design was so successful, it was released as a separate piece of hardware dubbed the accusonics type 4 spring reverb.

Get a low price and free shipping on thousands of items. Stereo spring reverb, tape echo, what analog fx are worth the. Radial tank driver spring reverb interface 500 series reverb. Radial tank driver 500 series spring reverb interface module. Replace, repair and restoregenuine fender parts repair your rig with topquality potentiometers used especially for fender amplifiers, including this direct replacement reverb units used for amplifiers with spring reverb.

Balanced interface for guitar spring reverbs use the spring reverb in your guitar amp for mixing add unique reverb effects to your recordings. Proper reverb tanks are a bit hard to get, but when i found that schneiders laden sells the small accutronics amc2bf3 reverb tank for the very reasonable price of 12. The lamington reverb a better valve reverb unit valve. Using a high impedance tank and a constant current pentode driver that eliminates the drive transformer, it is possible to build a simpler and superior spring reverb unit. Revisit reverb tank, 9 long, 3 spring, equivalent to accutronics 8ab2d1a. Build your own spring reverb tape op magazine longform. Guitar signal enters at upper left and gets amplified by the reverb driver both stages of a 12at7 tube in parallel then flows into the reverb transformer which trades high voltage for current. Sr1 spring reverb build guide the instructions for the spring reverb kit are divided into the 3 main sections of the circuit. Any amp using a two spring tank may have its tank replaced by a three spring tank of the same impedance code for example, 4ab3c1b vs. Yeah, the thing ive labelled sound input on the dc mixer just becomes the input for the spring reverb as a whole, the dc mixer becomes the front end for the spring rev driver. Selfdrilling screws are supplied with the tank to help you attach the tank to the desired location on the pedalboard. The 2 spring tank has a different mounting plane designated by digit 8 of the code. Table of contents 2 the reverberation effect electromechanical reverberation devices.

Unplug the reverb pan, and connect a speaker to the reverb jack labeled reverb input. With the tank driver, you can take any balanced line level signal or prerecorded track and play it through your favorite spring reverb. From the schematic floating around online, this amp has a reverb driver transformer with an 8 ohm secondary. Using a pair of 14 to rca cables, just plug the tankdriver into your combo amps reverb tank or any outboard reverb tank and put it to work on your recordings. The mind blowing tone comes from the fact that this pedal has a real spring tank, not a digital modeling unit that is commonly found in many pedals. The amplified current is sent to the reverb tanks input transducer see tank detail below. To be clear, it requires a small power amplifier, rather than voltage amplifier to drive it, so you would have to reproduce that circuit. This is easily modified by jumping or desoldering two solder pads. In 2011 i published a schematic for a little spring reverb driver based on roy mallorys tech note for using a very. The input transducer of a reverb tank is a coil of wire wound around an iron core. Thanks for looking in and happy bidding original 1965 gibbs spring reverb tank pan unit. Radial tank driver 500 series spring reverb interface.

The tank was three inches long and had one spring, or sometimes two. The 8db2c1b is used in some other versions of the jazz. Essentially, you get two adjustable reverbs via the two footswitches that are found on the face. Aug 20, 20 finally finished my spring reverb module, which consists of a spring tank unit and an amplifier circuit with opamps. I suggest you try googling driver amplifier for spring line reverb. The preamp fed a singleended, class a output power amp pa. I got this cook spring reverb working, but as per schematic had to connect the negative end on the bottom 0. Spring reverbs can be mono or stereo depending on their configuration. Disconnect your reverb cables from the amplifiers chassis.

The onetransistor pa drove an autotransformer in its collector circuit. Tank driver with spring reverb if you have an old amplifier that is not working, you can pull the spring reverb out of the box and set it on a table. I have a fender 3 spring reverb tank that i would like to set up so it can be used. Then we developed a 2band eq that could sufficiently reshape the spectrum so that it is balanced and not only dependent on the bandwidth of the spring tank.

On other spring reverb, i have a good balance beetween signal send and recovery thunder hit. The reverb tank should be isolated from vibrating surfaces as much as possible. Nov 12, 2017 everything i know about spring reverb. The instructions for the spring reverb kit are divided into the 3 main sections of the circuit. Radial engineering tank driver spring reverb interface.

Compared from other spring reverb that use huge boxes, the tank is detached from the pedal, and connected by a cable. The car radio excited a miniature reverb spring tank. A transformerless constantcurrent reverb driver introduction. Three spring tanks have a more smoothed out flutter with a bigger, fuller sounding reverb effect and more lows. Radial engineering tank driver 500 series spring reverb. While it does the spring reverb thing with the real tank, it can also create an array of unheard of sounds thanks to the thundertube driver circuit. Accutronics products and specifications antique electronic. Balanced interface for guitar spring reverbsuse the spring reverb. The input transducer of a reverb tank is a coil of wire. Having passed through the reverb circuitry and spring tank, the wet and dry signals reconvene via 100k mixer resistors.

Finally finished my spring reverb module, which consists of a spring tank unit and an amplifier circuit with opamps. If you have an old amplifier that is not working, you can pull the spring reverb out of the box and set it on a table. The basic spring reverb chamber is a simple affair see figure 1, with an input and output transducer, and one or more usually three or four springs lightly stretched between them. Something neat, if random, that i came across and decided to make a video of. Small in size, this three spring reverb approaches the rich textural quiality of the larger reverb units. Going from right to left as you are looking into the back of the amp. In 1961, fender started selling a separate reverb unit that utilized a hammond sourced reverb tank, before introducing a guitar amp with an integrated reverb in. The uverbia is a real spring reverb pedal which has a driver that sends a signal to a spring tank in a similar manner to a guitar amplifier. But all in all, the most cost effective way is diy. I love the spring thats built into my hammond a100 so i bought another necklace spring off ebay and am trying to figure out a way to drive it and use it as an outboard spring reverb unit. The overall sound i am looking for is a fender 63 type reverb surfy sound. Because merlin say that 12au7 have it s a perfect current source for high impedance tank. These are some notes about what the module does, how it was designed. Balanced reverb tank interfacethe tank driver is a unique 500 series modules that allows you to drive balanced line level signals through guitar amp reverb tanks, optimized to work with both modern and vintage spring reverb models.

The drive circuit for any spring reverb tank is critical by far the most critical part of. Apr 18, 2019 on the element we have used very low noise opa, this had permit us to offer you a reverb that manages full wet signal with the same level of output as at the input. The uverbia real spring tank reverb pedal screaminfx. The drive coil has a nominal impedance specified at 1khz, but it also has considerable inductance. For example, fender typically uses two parallel sections of an 12at7 in a class a single ended circuit as the reverb tank driver in their tube amplifiers. Spring reverb tanks explained and compared amplified parts. Reverb short for reverberation simulates the reflected sound from a rooms interior. The tank driver is a unique 500 series modules that allows you to drive balanced line level signals through guitar amp reverb tanks, optimized to work with both modern and vintage spring reverb models. Found in some roland jc120 very early versions and also the jc120ut.

Add only the numerical characters of the item number. More information on reverb tanks is also available at rod elliots site. Radials amazing tankdriver 500 series module lets you add authentic spring reverb to your tracks. If another reverb tank worked in your amp you do at least know that its definitely the tank. Radial tankdriver 500 converts line level signal to drive any spring reverb tank, 2 band eq. The reverberation effect is created when an audio signal created by a transducer is sent through one or more springs, the movement of the springs is then converted back into an audio signal by another transducer at the other end, creating the unique sound. But that is not the only way to drive a reverb tank using a vacuum tube, and in fact it is not the best way. If the wires look connected youre as well just replacing it probably either the drive coil is blown not the return if it makes a noise when shaken or theres a break in the fine wire or solder connection at the coil. Vacuum tube reverb circuits traditionally have used a lowimpedance reverb tank coupled to the driver tube by a small output transformer.

Worth the few extra bucks,accutronics is the classic long spring reverb. The 10 best spring reverb pedals analog and digital. There is also a second channel onboard for you to select and adjust reverb depth independently. Excellent quality and perfect sound,4 second decay time accurate and slight treble increase as expected from long spring tanks. I found some simple circuits on the accutronics website. If you have a 500series rack, you can always get the radial tank driver, which is a 500series card that allows you to connect to any outboard reverb tank, like one already in the back of a guitar amp.

The more traditional spring reverb is mono in, mono out, but stereo is easily achievable by adding a. Revisit reverb tank 17 long 2 spring equivalent to accutronics 4ab3a1a. The commonly used driver circuit drives a low impedance tank via a small transformer. In addition, a plugpack power supply similar to the one used in the lamington junior amp can be used to simplify the power supply and make it a cheap build. I am looking to build a driver with line level input and output for a accutronics type 4 spring reverb pulled from a hammond organ. Reverb tank accutronics, 4ab3c1b, long decay, 2spring. The sections should be individually built and tested one after the other, as opposed to building the entire unit all at once. Care and feeding of spring reverb tanks elliott sound products. I know about the radial tank driver 500 series module and i may resort to that but i wanted to see if there were any better diy options preferably tube. A signal is driven into the drivers attached to one end of each spring, labeled input, which acts like a speaker. Spring reverb tanks are used to create a unique reverberation effect in guitar amps and organs. Designed for applications in which the overall sound quality is important and a compact package is required.

Im not sure if it will definitely work but the first tank i would try is the 4ab3c1b. If the reverb in your amplifier no longer works and you suspect the reverb tank itself is the issue, you can test the tank with an ohmmeter by doing the following. Accutronics products and specifications there are a number of different types of reverb tanks available. The reverb drive is basically a fourwatt output amplifier consisting of a 12at7 tube and a reverb driver transformer. Reverb tanks arent hard to get, i bought some for about 30 eur each. Even though your tank came in a marshall head, it may have been manufactured by accutronics if not, you may find that yours matches or is very close to the specs of one of theirs. This article considers only the driver stage, and not the reverb recovery stage which is usually a simple triode gain stage, unfortunately. Investigating spring reverb stereoping music devices. Its a bit cranky, ive found that the blend doesnt always take the reverb completely out like you say, possibly the resistors need to go a bit lower there. Get the lowest price on the radial tank driver 500series spring reverb module. Then the tank can be hidden under the pedalboard or kept on top of the board, this is up to you. Before you jump into a new tank or damping your springs, try switching the reverb send tube with one that will give you a bit more control. Most spring reverbs are made from accutronics or are copies of this old standby. The combination of the pan and springs is referred to as a tank.

Fisher k 10 spacexpander tube spring reverb schematics diagram teac a 2340sx 4 track tape recorder schematics diargams zip. A simplified crosssectional side view of a reverb tank to illustrate transducer orientation inside the tank in the vertical connectors up mounting spring reverb if the reverb tank cannot be mounted in the ideal vertical connectors up plane, the tank should be chosen with magnets that have spring reverb factory adjusted to be centered in. For instance you can replace a 2 spring tank with 3 spring tank etc as long as the important numbersletters match. Radial tankdriver 500 series module for spring reverbs 500 series module for spring reverbs connects reverb tank to your recording system separate shimmer and boom controls add authentic spring reverberation into your mix the radial tankdriver is a unique 500 series module that enables you to connect the spring reverb in your old fender twin amp to your recording system. A spring reverb unit is comprised of three main components.

Old school spring reverb literally uses the movement of springs to delay and replicate an audio signal. Spring reverb drivers information on driving spring reverb using valves tubes seems to be rather sparse, so the following is presented as a guide to valve amp designers. How to build your own spring reverb unit all things. The radial tank driver is a 500 series balancing interface to allow the user to connect the spring reverb from their guitar amplifier to line level studio gear. Radial tank driver 500 series radial engineering amber tech. This is the standard tank used in fender amps which as also use reverb driver transformer with an 8 ohm secondary. Remove the 6v6 or 6l6 output tubes to disable sound coming from the main speaker. A modern reverb tank consists of drivers, transmission springs, pickups, and a shock mounting system. Connecting to and from the spring reverb and the tank driver is easy and most spring reverbs are clearly marked with input and output. Driving a reverb spring tank presents some challenges. Yes, an affordable interface designed specifically to drive spring reverbs of all types and deliver the long trailing shimmering effect that is only possible with a true spring. A reverb tank takes a small amount of power to drive it. The radial tank driver is a wonderfully unique 500 series module that allows you to drive a balanced line level signal through the reverb tank in your fender twin amp. This will also change the sound characteristics of the reverberation effect.

Please, follow these basic instructions to place your order. In 1961, fender started selling a separate reverb unit that utilized a hammondsourced reverb tank, before introducing a guitar amp with an integrated reverb in. It is recommended that the driver be a current or voltage source with an output rising 6. The 5th digit on these tanks is also different meaning that the input and output have a different groundedinsulated setup. Check the resistance of the reverb tank s output using an ohmmeter. The lamington reverb a better valve reverb unit valve heaven. Inspired by the channel road paper, i looked at building a stand alone reverb unit.